27Aug2021-Cpp2IL-Dump/Assembly-CSharp/BestHTTP/SecureProtocol/Org/BouncyCastle/Crypto/Tls/TlsDHKeyExchange.cs

using System;
using System.Collections;
using System.IO;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1.X509;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Agreement;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Math;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Security;
using Cpp2IlInjected;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Tls
{
	// Token: 0x02001C4C RID: 7244
	[Token(Token = "0x2001C4C")]
	public class TlsDHKeyExchange : AbstractTlsKeyExchange
	{
		// Token: 0x0600B22D RID: 45613 RVA: 0x002684CC File Offset: 0x002666CC
		[Token(Token = "0x600B22D")]
		[Address(RVA = "0x4A03D0", Offset = "0x49F3D0", VA = "0x1804A03D0")]
		[Obsolete]
		public TlsDHKeyExchange(int keyExchange, IList supportedSignatureAlgorithms, DHParameters dhParameters)
		{
			DefaultTlsDHVerifier defaultTlsDHVerifier = new DefaultTlsDHVerifier();
		}

		// Token: 0x0600B22E RID: 45614 RVA: 0x002684E0 File Offset: 0x002666E0
		[Token(Token = "0x600B22E")]
		[Address(RVA = "0x4A02B0", Offset = "0x49F2B0", VA = "0x1804A02B0")]
		public TlsDHKeyExchange(int keyExchange, IList supportedSignatureAlgorithms, TlsDHVerifier dhVerifier, DHParameters dhParameters)
			: base(keyExchange, supportedSignatureAlgorithms)
		{
			TlsDssSigner tlsDssSigner = new TlsDssSigner();
			TlsRsaSigner tlsRsaSigner = new TlsRsaSigner();
			int num = 0;
			this.mTlsSigner = num;
			this.mDHVerifier = dhVerifier;
			this.mDHParameters = 0;
		}

		// Token: 0x0600B22F RID: 45615 RVA: 0x00268524 File Offset: 0x00266724
		[Token(Token = "0x600B22F")]
		[Address(RVA = "0x49FB70", Offset = "0x49EB70", VA = "0x18049FB70", Slot = "20")]
		public override void Init(TlsContext context)
		{
			base.Init(context);
			if (this.mTlsSigner != 0)
			{
			}
		}

		// Token: 0x0600B230 RID: 45616 RVA: 0x00268544 File Offset: 0x00266744
		[Token(Token = "0x600B230")]
		[Address(RVA = "0x4A0150", Offset = "0x49F150", VA = "0x1804A0150", Slot = "21")]
		public override void SkipServerCredentials()
		{
		}

		// Token: 0x0600B231 RID: 45617 RVA: 0x00268554 File Offset: 0x00266754
		[Token(Token = "0x600B231")]
		[Address(RVA = "0x49FDE0", Offset = "0x49EDE0", VA = "0x18049FDE0", Slot = "22")]
		public override void ProcessServerCertificate(Certificate serverCertificate)
		{
			while (serverCertificate.Length != 0)
			{
			}
			X509CertificateStructure[] certificateList = serverCertificate.GetCertificateList();
			AsymmetricKeyParameter asymmetricKeyParameter = PublicKeyFactory.CreateKey(certificateList.SubjectPublicKeyInfo);
			this.mServerPublicKey = asymmetricKeyParameter;
			if (this.mTlsSigner == 0 || asymmetricKeyParameter != 0)
			{
				this.mDHAgreePublicKey = asymmetricKeyParameter;
				this.mDHParameters = asymmetricKeyParameter;
				TlsUtilities.ValidateKeyUsage(certificateList, 8);
				base.ProcessServerCertificate(serverCertificate);
				return;
			}
			throw new NullReferenceException();
		}

		// Token: 0x17001C4C RID: 7244
		// (get) Token: 0x0600B232 RID: 45618 RVA: 0x002685B8 File Offset: 0x002667B8
		[Token(Token = "0x17001C4C")]
		public override bool RequiresServerKeyExchange
		{
			[Token(Token = "0x600B232")]
			[Address(RVA = "0x4A0470", Offset = "0x49F470", VA = "0x1804A0470", Slot = "24")]
			get
			{
				if (this.mKeyExchange != 11)
				{
				}
				return true;
			}
		}

		// Token: 0x0600B233 RID: 45619 RVA: 0x002685D4 File Offset: 0x002667D4
		[Token(Token = "0x600B233")]
		[Address(RVA = "0x49FA70", Offset = "0x49EA70", VA = "0x18049FA70", Slot = "25")]
		public override byte[] GenerateServerKeyExchange()
		{
			MemoryStream memoryStream = new MemoryStream();
			TlsContext mContext = this.mContext;
			DHPrivateKeyParameters dhprivateKeyParameters;
			this.mDHAgreePrivateKey = dhprivateKeyParameters;
			((IDisposable)memoryStream).Dispose();
			throw new NullReferenceException();
		}

		// Token: 0x0600B234 RID: 45620 RVA: 0x00268604 File Offset: 0x00266804
		[Token(Token = "0x600B234")]
		[Address(RVA = "0x4A0050", Offset = "0x49F050", VA = "0x1804A0050", Slot = "27")]
		public override void ProcessServerKeyExchange(Stream input)
		{
			DHParameters dhparameters = TlsDHUtilities.ReceiveDHParameters(this.mDHVerifier, input);
			this.mDHParameters = dhparameters;
			BigInteger bigInteger = TlsDHUtilities.ReadDHParameter(input);
			DHParameters dhparameters2 = this.mDHParameters;
			DHPublicKeyParameters dhpublicKeyParameters = new DHPublicKeyParameters(bigInteger, dhparameters2);
			this.mDHAgreePublicKey = dhpublicKeyParameters;
		}

		// Token: 0x0600B235 RID: 45621 RVA: 0x00268644 File Offset: 0x00266844
		[Token(Token = "0x600B235")]
		[Address(RVA = "0x4A01B0", Offset = "0x49F1B0", VA = "0x1804A01B0", Slot = "28")]
		public override void ValidateCertificateRequest(CertificateRequest certificateRequest)
		{
			int num;
			do
			{
				string text = certificateRequest.ToString();
				num = 0;
			}
			while (18446744073709551615UL > (ulong)3L && num != 64);
			num++;
		}

		// Token: 0x0600B236 RID: 45622 RVA: 0x0026866C File Offset: 0x0026686C
		[Token(Token = "0x600B236")]
		[Address(RVA = "0x49FC30", Offset = "0x49EC30", VA = "0x18049FC30", Slot = "30")]
		public override void ProcessClientCredentials(TlsCredentials clientCredentials)
		{
			if (clientCredentials == 0)
			{
			}
		}

		// Token: 0x0600B237 RID: 45623 RVA: 0x00268680 File Offset: 0x00266880
		[Token(Token = "0x600B237")]
		[Address(RVA = "0x49F880", Offset = "0x49E880", VA = "0x18049F880", Slot = "32")]
		public override void GenerateClientKeyExchange(Stream output)
		{
			if (this.mAgreementCredentials == (ulong)0L)
			{
				TlsContext mContext = this.mContext;
				DHPrivateKeyParameters dhprivateKeyParameters;
				this.mDHAgreePrivateKey = dhprivateKeyParameters;
			}
		}

		// Token: 0x0600B238 RID: 45624 RVA: 0x002686AC File Offset: 0x002668AC
		[Token(Token = "0x600B238")]
		[Address(RVA = "0x49FBD0", Offset = "0x49EBD0", VA = "0x18049FBD0", Slot = "31")]
		public override void ProcessClientCertificate(Certificate clientCertificate)
		{
		}

		// Token: 0x0600B239 RID: 45625 RVA: 0x002686BC File Offset: 0x002668BC
		[Token(Token = "0x600B239")]
		[Address(RVA = "0x49FD30", Offset = "0x49ED30", VA = "0x18049FD30", Slot = "33")]
		public override void ProcessClientKeyExchange(Stream input)
		{
			if (this.mDHAgreePublicKey == (ulong)0L)
			{
				BigInteger bigInteger = TlsDHUtilities.ReadDHParameter(input);
				DHParameters dhparameters = this.mDHParameters;
				DHPublicKeyParameters dhpublicKeyParameters = new DHPublicKeyParameters(bigInteger, dhparameters);
				this.mDHAgreePublicKey = dhpublicKeyParameters;
			}
		}

		// Token: 0x0600B23A RID: 45626 RVA: 0x002686F4 File Offset: 0x002668F4
		[Token(Token = "0x600B23A")]
		[Address(RVA = "0x49F930", Offset = "0x49E930", VA = "0x18049F930", Slot = "34")]
		public override byte[] GeneratePremasterSecret()
		{
			DHPrivateKeyParameters dhprivateKeyParameters;
			for (;;)
			{
				if (this.mAgreementCredentials == 0)
				{
					dhprivateKeyParameters = this.mDHAgreePrivateKey;
					if (dhprivateKeyParameters != 0)
					{
						break;
					}
				}
			}
			DHBasicAgreement dhbasicAgreement = new DHBasicAgreement();
			BigInteger bigInteger = dhbasicAgreement.CalculateAgreement(dhprivateKeyParameters);
			int fieldSize = dhbasicAgreement.GetFieldSize();
			byte[] array;
			return array;
		}

		// Token: 0x040071B1 RID: 29105
		[FieldOffset(Offset = "0x28")]
		[Token(Token = "0x40071B1")]
		protected TlsSigner mTlsSigner;

		// Token: 0x040071B2 RID: 29106
		[FieldOffset(Offset = "0x30")]
		[Token(Token = "0x40071B2")]
		protected TlsDHVerifier mDHVerifier;

		// Token: 0x040071B3 RID: 29107
		[FieldOffset(Offset = "0x38")]
		[Token(Token = "0x40071B3")]
		protected DHParameters mDHParameters;

		// Token: 0x040071B4 RID: 29108
		[FieldOffset(Offset = "0x40")]
		[Token(Token = "0x40071B4")]
		protected AsymmetricKeyParameter mServerPublicKey;

		// Token: 0x040071B5 RID: 29109
		[FieldOffset(Offset = "0x48")]
		[Token(Token = "0x40071B5")]
		protected TlsAgreementCredentials mAgreementCredentials;

		// Token: 0x040071B6 RID: 29110
		[FieldOffset(Offset = "0x50")]
		[Token(Token = "0x40071B6")]
		protected DHPrivateKeyParameters mDHAgreePrivateKey;

		// Token: 0x040071B7 RID: 29111
		[FieldOffset(Offset = "0x58")]
		[Token(Token = "0x40071B7")]
		protected DHPublicKeyParameters mDHAgreePublicKey;
	}
}